import com.Controller.UserController;import com.User.Student;import com.User.User;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;public class app {    public static void main(String[] args) {        ApplicationContext context = new ClassPathXmlApplicationContext("spring_config.xml");        UserController controller = context.getBean("userController", UserController.class);        User user = controller.getUser();       // User user = context.getBean("user",User.class);        user.sayHi();    }}